RAL 550-6 vs Windmill Lane
RAL 550-6 (RAL Effect) and Windmill Lane (Little Greene) come from different manufacturers. The 20-point LRV gap — 31 for Windmill Lane vs 11 for RAL 550-6 — means Windmill Lane will open up a space more effectively. A ΔE of 39.7 puts these firmly in different territory — two distinct design choices rather than close alternatives.
RAL 550-6 vs Windmill Lane Color Comparison
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
Color Details
RAL 550-6 vs Windmill Lane in Real Spaces
Seeing RAL 550-6 and Windmill Lane in actual rooms makes the difference concrete. Browse the spaces below to get a feel for how each color lives on a wall. Showing 1 room type where both colors have photos.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Windmill Lane returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Plan Home visualization
@sarnova_interiors
More RAL 550-6 comparisons
See how RAL 550-6 stacks up against other well-photographed colors across different brands and tones.

Light vs dark contrast
RAL Effect vs Benjamin Moore

Light vs dark contrast
RAL Effect vs Farrow & Ball

RAL Effect vs Sherwin-Williams
RAL Effect vs Sherwin-Williams

Light vs dark contrast
RAL Effect vs Farrow & Ball

Evergreen Fog reads lighter
RAL Effect vs Sherwin-Williams

Light vs dark contrast
RAL Effect vs Farrow & Ball

Light vs dark contrast
RAL Effect vs Sherwin-Williams

Denim Drift reads lighter
RAL Effect vs Dulux

Light vs dark contrast
RAL Effect vs Dulux

Light vs dark contrast
RAL Effect vs Benjamin Moore

RAL Effect vs Benjamin Moore
RAL Effect vs Benjamin Moore

Light vs dark contrast
RAL Effect vs RAL Classic

RAL Effect vs Dulux
RAL Effect vs Dulux

Cement grey reads lighter
RAL Effect vs RAL Classic

RAL Effect vs RAL Classic
RAL Effect vs RAL Classic

Light vs dark contrast
RAL Effect vs Jotun

Light vs dark contrast
RAL Effect vs Jotun

RAL 550-6 reads lighter
RAL Effect vs Little Greene

Light vs dark contrast
RAL Effect vs Jotun

RAL Effect vs Little Greene
RAL Effect vs Little Greene

RAL Effect vs Behr
RAL Effect vs Behr

RAL 550-6 reads lighter
RAL Effect vs Little Greene

Light vs dark contrast
RAL Effect vs Behr

Light vs dark contrast
RAL Effect vs Behr

Light vs dark contrast
RAL Effect

Light vs dark contrast
RAL Effect

Light vs dark contrast
RAL Effect

RAL Effect vs NCS
RAL Effect vs NCS

Light vs dark contrast
RAL Effect vs NCS

Light vs dark contrast
RAL Effect vs NCS











